I currently have my engine out & am getting ready to paint it. It's been cleaned and its down to bare metal in some places. Do I need to prime it with high temp. primer or just go ahead & shoot it with regular hi temp. engine paint?

Duplicolor makes a rattle can system that has primer, color and clear. All high temp engine paint. I like it close to the Eastwood stuff that you have to spray with a gun. Just depends on how pretty you want it.

I would suggest you use aerosol stripper to get all of the old paint off.
I have had the best luck with catalyzed auto body enamel in terms of durability. I have not seen the rattle can stuff stay on more than a year or 3.

The "rattle can stuff" stays on just fine ....if you use a good quality paint made for the application and do the proper prep work before painting. Not eveyone has a compressor and spray gun to paint a block and related parts.

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